Machine fob



UNITED STATES PATENT OFFICE.

GEO. B. PIILLINGER, OF PHILADELPHIA, PENNSYLVANIA.

MACHINE FOR CUTTING HAND-RAILS.

Specication of Letters Patent No. 9,220, dated August 24, 1852.

To all whom it may concern:

Be it known that I, GEORGE B. PULLINGER, of the city and county ofPhiladelphia and State of Pennsylvania, have invented a new and usefulMachine for Cutting Hand-Rails and other Irregular' Forms; and I dohereby declare that the following is a full and exact description, ofthe same, reference being had to the accompanying drawings, forming partof this specification, 1n which- Figure l, is a side elevation. Fig. 2,is a front elevation. Fig. 3, is a detached view, or front elevation ofthe cutters and feed rollers and also a strip of timber secured betweenthe rollers, and partly formed into a rail.

Similar letters of reference in each of the several figures indicatecorresponding parts.

The nature of my invention consists in a novel arrangement of mechanismfor cutting hand-rails and other irregular forms. Thel cutters aresecured on the top of revolving spindles, one of which being securedfirmly to the `frame of the machine and the other being attached to anadjustable sliding bar which is attached to the frame of the machine byset screws; and the beveled shaped feed rollers being arranged in suchrelation' to the cutters as to serve with them to hold the strip oftimber, being operated upon, firmly in its place; the rollers alsoserving to feed it to the cutters as fast as they oper-l ate upon, andcut it to the desired shape.

,The two upper revolving feed rollers being` secured, one above theother, within a revolving frame which has a small shaft passing throughits center and between the two rollers: the journals of which shaftresting and turning loosely in bearings in an adjustable sliding frameattached to the top p0rtion of the frame of the machine in the mannerhereinafter described. Each of the upper rollers is made of a form tosuit the shape of the irregular part f the rail or other body being cut;and either of them can be made to operate upon the piece of timber, orrather be made to feed it to the cutters, by simply revolving the frame,in

which they rest and turn, on its axis, or

moving the roller for holding the block when square, up to the positionoccupied by the roller which holds the block after it is reversed andhalf formed into a rail or other curved body, and thereby cause thecurved surfaced roller to occupy its proper position in relation to thecutters.

To enable others skilled in the art to make and use my invention I willproceed to describe its construction and operation.

A, A, represent the main frame which may be of cast iron or othersuitable material.

B, and C, Figs. 2and 3, are thecutters and D, E, the revolving spindlesto which they are secured and with which they revo-lve. These cuttersare always made of a shape to correspond with the irregular surfaces ofthe rail or other article being molded. Thatlettered B, serving to sha ethe sides of a rail and that C, the top: Tiie spindles of these cuttersrest and turn in steps a, b, and the necks of t-he cutters rest uponcollars or standards c, d, through which the spindles pass. One oft-hese spindles D, is attached to an adjustable bar F, having inclinedflanges or projections c,

cast on or attached t-o it; said projecting pieces having oblong slotsg, cut in them in which set screws Iz., work as the position of thecutter is changed, these set screws serve to keepv the cutters firmly intheir place after being once set: The projections c, j', slide inincline grooves z', z', cut in the frame of the machine, and therebyallow of the cutter B being moved nearer to or farther from the cutterC, as desired. G, is the set screw for moving the cutter B, in or out:This screw passes through an ear or projection of the adjustable bar F,and through a portion of the frame A, in the manner represented in Figs.l, and 2. The cutter B and its spindle are made to revolve by a band 13,passing around the drum H, on the spindle, and over the pulley I, on thedriving shaft J. The other cutter C, is secured permanently to the frameA, in the manner shown, and is made to revolve in a similar manner ast-he cutter B. The cutter C it will be seen, is placed somewhat higherthan the cutter B; the object of this is to allow of the block beingalways held in an inclined position, and also to suit the bevel orinclination of the feed rollers. By holding the block or strip of timberin an inclined position it will be seen that the operation of cuttingthe rail can be carried on without any difficulty or inconvenience: Theholding of the block in an inclined position I consider an importantfeature in my invention.

K, represents the lower feed roller upon which the bottom of the railrests-this roller is hung on a horizontal shaft L, the journals of whichresting and turning in bearings in the sliding adjustable support M,shown in Fig. 2, and in dotted lines in Fig. 1. This roller has twoinclined or beveled surfaces N, O, upon which the bot tom and sides ofthe rail rest, in the manner shown in Fig. 3, the beveled surface N,serving for the bottom and that O, the side. This roller has a number ofsmall teeth P, cut in the horizontal port-ion of its periphery, saidteeth working in a worm or screw Q, attached to the support M, andhaving a worm wheel R, secured on its end; said worm wheel working in aworm S, cut on the end of the revolving shaft T, which rests in a stepy', and is made to revolve by a band l2, passing from a small pulley U,on the driving shaft J, to the pulley V on the shaft T. When the shaft Trevolves the feed roller K, is set in motion through the worm gearingjust described. The support M, carrying the roller K, is made adjustablefor the purpose of lowering or elevating the roller to any positiondesired.

k, is a slide connected to the support M, by means of a set screw Z, forregulating the posit-ion of the feed roller K, and support. This slideis moved in and out in a groove cut in the frame A; by means of a setscrew n. o, is a screw for keeping the support M, permanently in itsplace while the machine is operating.

W, X,- are the two top or upper feed rollers. Y, the revolving frame inwhich they rest, Z, the shaft upon which the frame Y, turns or revolveswhen it is desired to change the rollersand p, is a yielding and selfadjusting frame, to which the frame Y, carrying the feed rollers isatt-ached in the manner represented in the drawing.

The roller W, which feeds the block when square, has two inclined orbeveled surfaces 1, 2, which serve as supports to the strip of timberwhile one side and half the top of the rail is being formed. And theroller X, or the surface upon which the rail rests is made of a curvedshape to correspond with the curved part of the rail formed at the firstoperation of passing the strip of timber through the rollers andcutters. This roller is brought into Voperation after the position ofthe rail has been reversed, by simply pressing the finger under thespring 3, which will cause the pin 4, to be lifted out of its rest inthe revolving frame Y, and then moving or revolving the said frame inthe direction indicated by the red arc of a circle; and thereby causingthe roller X,

lto assume the position occupied by the feed roller W, and that W toasume the position occupied by X; as soon as this takes place the spring3, and pin 4, occupy their original position again and lock the frame Y,

firmly in its place.

The yielding and self adjusting frame p, slides in ways or grooves cutin smallbars 5, 5, 5, 5, and also has small spiral springs 7, 7 securedaround rods 6, 6, attached to the frame in the manner shown; these rodsmove freely in openings in the projecting pieces 8, 8, when the slidingframe 79, is raised or lowered by the screws 9, 9.

10, represents the block partly formed into a rail. Y

The operation of this machine is as follows-The strip of timber 10,being placed between the feed rollers W, K, and motion communicated tothe cutters B, C, and the worm shaft being also\set in motion it willcause the feed roller K, which feeds the block to the cutters, torevolve. As soon as the block commences to move, the roller W, is causedto revolve and act in concert with the roller K, and feed the blockconstantly to the cutters which mu-st be of the same shape as theirregular or curved and straight portions of the article being produced.It will be seen by referringto Fig. 3, that only one half of the top andone side of the rail is molded at the first operation of passing thestrip of timber through the rollers, and that consequently it isnecessary to reverse the position of the block, or cause that portionmarked out in red dotted lines to assume the position shown in full redlines or to occupy the position which the molded portions occupiedbefore the block was reversed. By thus reversing the block the squareportions of the rail are brou ht in contact with the cutters. The rollermust now be substituted for the roller W, in the manner hereindescribed; the curved portions of which resting on the curved portionsof the rail, this being done the machine is again set in motion, and thecutters are made to operate upon the rai-l in the same manner as before.

What I claim as my invention and desire to secure by Letters Patent is-Arranging the rollers W, X, one above the other within a revolving frameY, so as to allow of the curved `roller X,'or its equivalent beingsubstituted for the roller W, at the time desired and in the manner andfor the purpose herein fully specified.

GEORGE B. PULLINGER.

Witnesses:

RICHD. S. CRISTIANI, Jos. A. MCM/AKEN.

